Phenom II X6 1055T (125W) vs Core 2 Quad Q8400
Primary details
Comparing Core 2 Quad Q8400 and Phenom II X6 1055T (125W) processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2225 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Yorkfield (2007−2009) | Thuban (2010) |
| Release date | 19 April 2009 (15 years ago) | 27 April 2010 (14 years ago) |
Detailed specifications
Core 2 Quad Q8400 and Phenom II X6 1055T (125W) basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 6 (Hexa-Core) |
| Threads | 4 | 6 |
| Base clock speed | 2.66 GHz | 2.8 GHz |
| Boost clock speed | 0.67 GHz | 3.3 GHz |
| Bus rate | 1333 MHz | no data |
| L1 cache | 64 KB (per core) | 128 KB (per core) |
| L2 cache | 4 MB (shared) | 512 KB (per core) |
| L3 cache | 0 KB | 6 MB (shared) |
| Chip lithography | 45 nm | 45 nm |
| Die size | 2x 82 mm2 | 346 mm2 |
| Maximum case temperature (TCase) | 71 °C | no data |
| Number of transistors | 456 million | 904 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.3625V | no data |
Compatibility
Information on Core 2 Quad Q8400 and Phenom II X6 1055T (125W) compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | FCLGA775,LGA775 | AM3 |
| Power consumption (TDP) | 95 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad Q8400 and Phenom II X6 1055T (125W). You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
| Status | Discontinued | no data |
Security technologies
Core 2 Quad Q8400 and Phenom II X6 1055T (125W) technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Quad Q8400 and Phenom II X6 1055T (125W) are enumerated here.
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400 and Phenom II X6 1055T (125W). Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | no data |
Peripherals
Specifications and connection of peripherals supported by Core 2 Quad Q8400 and Phenom II X6 1055T (125W).
| PCIe version | 2.0 | 2.0 |
Pros & cons summary
| Recency | 19 April 2009 | 27 April 2010 |
| Physical cores | 4 | 6 |
| Threads | 4 | 6 |
| Power consumption (TDP) | 95 Watt | 125 Watt |
Core 2 Quad Q8400 has 31.6% lower power consumption.
Phenom II X6 1055T (125W), on the other hand, has an age advantage of 1 year, and 50% more physical cores and 50% more threads.
We couldn't decide between Core 2 Quad Q8400 and Phenom II X6 1055T (125W). We've got no test results to judge.
Should you still have questions on choice between Core 2 Quad Q8400 and Phenom II X6 1055T (125W), ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
